CVE-2025-61662
grub2: Missing unregister call for gettext command may lead to use-after-free
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · November 18, 2025
Updated · October 16, 2026
Description
A Use-After-Free vulnerability has been discovered in GRUB's gettext module. This flaw stems from a programming error where the gettext command remains registered in memory after its module is unloaded. An attacker can exploit this condition by invoking the orphaned command, causing the application to access a memory location that is no longer valid. An attacker could exploit this vulnerability to cause grub to crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not discarded.
Statement
This vulnerability has been rated as have the impact of Moderate by the Red Hat Product Security team. This decision was made based in the fact an attacker needs local or physical access to the machine, to execute the gettext command after it was unloaded. Additionally the most likely outcome from an successful attack is a Denial of Crash by leading the grub2 to crash.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
There's no known mitigation available for this vulnerability.
CVSS / CWE
CVSS 3.1 · 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 · Use After Free